CN110720231A - Conditional extension of an evaluation period of radio link monitoring in new radio mobile communications - Google Patents

Conditional extension of an evaluation period of radio link monitoring in new radio mobile communications Download PDF

Info

Publication number
CN110720231A
CN110720231A CN201980002506.7A CN201980002506A CN110720231A CN 110720231 A CN110720231 A CN 110720231A CN 201980002506 A CN201980002506 A CN 201980002506A CN 110720231 A CN110720231 A CN 110720231A
Authority
CN
China
Prior art keywords
radio link
link monitoring
rlm
period
evaluation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201980002506.7A
Other languages
Chinese (zh)
Other versions
CN110720231B (en
Inventor
林烜立
林坤昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MediaTek Inc
Original Assignee
MediaTek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of CN110720231A publication Critical patent/CN110720231A/en
Application granted granted Critical
Publication of CN110720231B publication Critical patent/CN110720231B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems

Abstract

Techniques and examples are described for an evaluation period of Radio Link Monitoring (RLM) in New Radio (NR) mobile communications. The apparatus performs RLM for a radio link of a cell of a wireless network. In performing RLM, the apparatus determines whether an RLM reference signal (RLM-RS) overlaps one or more other reference signals, and extends an evaluation period of the RLM in response to a result of the determination indicating that the RLM-RS at least partially overlaps the one or more other reference signals.

Description

Conditional extension of an evaluation period of radio link monitoring in new radio mobile communications
Cross Reference to Related Applications
The present invention claims priority from U.S. provisional patent application nos. 62/670,413 and 62/674,687, filed on 11/2018 and 22/2018, 5/2018, respectively. The contents of the above application are incorporated by reference herein in their entirety.
Technical Field
The present invention relates generally to mobile communications, and more particularly, to a conditional extension (extension) of an evaluation period for Radio Link Monitoring (RLM) in New Radio (NR) mobile communications.
Background
Unless the invention is stated otherwise, the approaches described in this section are not prior art to the claims set forth below and are not admitted to be prior art by this section.
In a 3 rd generation partnership project based on, for example, NR (the 3)rdRadio link monitoring is a procedure used by a User Equipment (UE) to monitor the transmission quality of a radio link (e.g., a Physical Downlink Control Channel (PDCCH)) in mobile communications of the transmission part channel Project, 3GPP) specification. Thus, RLM may be used to help the UE reduce the number of radio link failures, thereby avoiding service interruption. In performing RLM, the UE determines the transmission quality of the radio link by comparing an RLM reference signal (RLM-RS) received from the network with a hypothetical PDCCH transmission. The RLM-RS may be a Synchronization Sequence Block (SSB) or a channel state information reference signal (CSI-RS), and an estimate of the reference signal is mapped to a hypothetical PDCCH for RLM. In the first frequency range (FR 1)450MHz to 6000MHz and the second frequency range (FR 2)24250MHz to 52600MHz defined in the 3GPP specifications, within a Measurement Gap (MG), since different frequency bands are used for RLM and a measurement gap repetition period (measurement gap)on period, MGRP), the UE will not be able to perform RLM and MGRP simultaneously, and thus there may be a problem when there is overlap between RLM and MGRP. In addition, in FR2, the UE will not simultaneously perform RLM and Synchronization Signal (SS)/Physical Broadcast Channel (PBCH) block measurement time configuration (SMTC), because RLM and SMTC will use different antenna beams. Therefore, there may be a case where the UE needs to extend the evaluation period of the RLM.
Disclosure of Invention
The following summary is illustrative only and is not intended to be in any way limiting. That is, the following summary is provided to introduce the concepts, benefits and advantages of the novel and non-obvious techniques described herein. Select embodiments are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
The present invention is directed to providing various schemes, concepts, designs, techniques, methods and apparatuses related to conditional extension of an evaluation period of RLM in NR mobile communication. Since the RLM evaluation period is based on the periodicity of the RLM-RS, the evaluation period may be extended based on whether the RLM-RS overlaps with one or more other reference signals under various proposed schemes according to the present invention.
In one aspect, a method may include a processor of an apparatus performing RLM with respect to a radio link of a cell of a wireless network. In performing RLM, the method may include the processor determining whether the RLM-RS overlaps one or more other reference signals, and extending an evaluation period of the RLM in response to determining a result indicating that the RLM-RS overlaps at least partially with the one or more other reference signals.
In one aspect, an apparatus may include a transceiver and a processor coupled to the transceiver. During operation, the transceiver may wirelessly communicate with a cell of the wireless network over a radio link. During operation, the processor may perform RLM for the radio link via the transceiver by: (a) determining whether the RLM-RS overlaps with one or more other reference signals: (b) in response to determining a result indicating that the RLM-RS at least partially overlaps with one or more other reference signals, an evaluation period of the RLM is extended.
It is noted that although the description provided by the present invention may be in certain radio access technologies, networks and network topologies (such as generation 5 (5))thGeneration, 5G)/NR), the proposed concepts, schemes and any variants/derivatives may be implemented in other types of radio access technologies, networks and network topologies, such as, but not limited to, LTE-Advanced Pro and Internet of things (IOT). The scope of the invention is therefore not limited to the examples described.
Drawings
The following drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is to be understood that the figures are not necessarily to scale, since some features may be shown out of proportion to actual implementation dimensions in order to clearly illustrate the concepts of the present invention.
FIG. 1 is an exemplary scenario diagram for implementing various solutions in accordance with the present invention.
Fig. 2A is a graph including a value of a relaxation factor (releasengifactor) in FR2, according to an embodiment of the present invention.
Fig. 2B is a graph including values of relaxation factors in FR1 according to an embodiment of the present invention.
FIG. 3 is an exemplary scene diagram according to an embodiment of the invention.
FIG. 4 is an exemplary scene diagram according to an embodiment of the present invention.
FIG. 5 is an exemplary scene diagram according to an embodiment of the invention.
FIG. 6 is an exemplary system block diagram according to an embodiment of the present invention.
FIG. 7 is a flow diagram of an example process according to an embodiment of the invention.
FIG. 8 is a flow diagram of an example process according to an embodiment of the invention.
Detailed Description
Detailed embodiments and implementations of the claimed subject matter are disclosed. However, it is to be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matter, which can be embodied in various forms. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the following description, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.
Overview
The present invention aims to provide solutions, schemes, concepts and/or designs that address the above-mentioned problems of SSB based RLMs and SSB and CSI-RS based RLMs. FIG. 1 illustrates an example scenario 100 in which various solutions, schemes, concepts and/or designs in accordance with this disclosure may be implemented. Referring to fig. 1, scenario 100 may include UE110 wirelessly communicating with a wireless network 120 (e.g., a 5G NR mobile network) via a base station 125 (e.g., an eNB, a gNB, or a transmit-receive point (TRP)). As described below, in scenario 100, UE110 may be in wireless communication with wireless network 120 via base station 125 to perform SSB-based RLM and/or SSB and CSI-RS-based RLM in accordance with various solutions, schemes, concepts and/or designs of the present invention.
In the present invention, the phrase "not overlapping" in the sentence "a does not overlap with B" refers to a case where a and B are mutually exclusive, where a and B are both periodic signals. In addition, the phrase "partially overlapping" in the sentence "a partially overlaps B" refers to a case where a is punctured by B and the period of a is shorter than the period of B. Further, the phrase "completely overlap" in the sentence "a completely overlaps B" refers to a case where a is equal to B.
In the present invention, the term "T _ RLM _ RS" represents the periodicity (periodicity) of SSB. The term "T _ RLM" represents the periodicity of RLM-RS, which is equal to the T _ RLM _ RS of SSB-based RLM. The term "T SMTC" represents the periodicity of SMTC, which is used to perform intra-frequency measurements. The term "T _ MGRP" represents the periodicity of the measurement group repetition period.
For the sake of brevity, each of the various examples provided by the present invention may be described in the context of an SSB-based RLM and/or a CSI-RS based RLM. Even so, it is noted that various proposed schemes according to the present invention can be applied to SSB-based RLM and CSI-RS-based RLM.
Under the proposed scheme according to the present invention, an RLM Sharing Factor (RSF) may be provided to account for the shared ratio between RLM and gapless intra-frequency measurements. Under the proposed scheme, the RSF may be defined as a fixed value (e.g., 3 or other value) in the 3GPP specification or may be provided by higher layer signaling. For example, in the case of RSF of 0.25, UE110 may perform an RLM measurement once after performing three intra-frequency measurements. According to the proposed scheme, RSF can be used for various scenarios. For illustrative purposes, and not by way of limitation, several example scenarios in which RSF may be used are described below.
In the first case, the RSF (here denoted "RSF _ a") may be used when the following conditions are met: (i) the SSB-based RLM-RS does not overlap with the measurement gap, and (ii) the SSB-based RLM-RS completely overlaps with the SMTC (e.g., T _ RLM _ RS ═ T _ SMTC). In the second case. RSF (denoted herein as "RSF _ b") may be used when the following conditions are satisfied: (i) the SSB-based RLM-RS partially overlaps the measurement gap, (ii) the SSB-based RLM-RS partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC), (iii) the SMTC does not overlap the measurement gap, and (iv) when either of the following conditions is satisfied: (a) t _ SMTC ≠ T _ MGRP, and (b) T _ SMTC ═ T _ MGRP and T _ RLM _ RS <0.5 × T _ SMTC. In a third case, RSF (denoted here as "RSF _ c") may be used when the following conditions are met: (i) the SSB-based RLM-RS partially overlaps the measurement gap, (ii) the SSB-based RLM-RS is completely overlapping the SMTC (e.g., T _ RLM _ RS ═ T _ SMTC), and (iii) the SMTC partially overlaps the measurement gap (e.g., T _ SMTC < T _ MGRP). In a fourth case, RSF (denoted herein as "RSF _ d") may be used when either of the following conditions is satisfied: (i) the SSB-based RLM-RS completely overlaps the SMTC, or (ii) partially overlaps the SMTC and the MGRP when T _ SMTC is T _ MG and T _ RLM _ RS is 0.5T _ SMTC.
With the proposed solution according to the present invention, regarding the evaluation period of RLM and the related UE behavior, in FR1, in case that RLM-RS does not overlap with the measurement gap, the evaluation period may be defined as T in the 3GPP specificationsevaluation_period. Furthermore, in FR2, the evaluation period may be extended by a relaxation factor P and may be mathematically denoted as P × Tevaluation_period
Under the proposed scheme according to the invention, the relaxation factor P may be determined in one of several ways, depending on whether the RLM-RS and the measurement gap overlap or partially overlap, as described below.
Under the proposed scheme, the relaxation factor P of the evaluation period of RLM in FR2 can be determined based on whether the SSB-based RLM-RS partially or completely overlaps the SMTC. In particular, when the SSB-based RLM-RS partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC), then P ═ 1/{1-T _ RLM _ RS/T _ SMTC }. Further, when the SSB-based RLM-RS and SMTC completely overlap (e.g., T _ RLM _ RS — T _ SMTC), then P — RSF _ a (as described above).
Under the proposed scheme, the relaxation factor P of the evaluation period of the RLM may be determined differently when the SSB-based RLM-RS partially overlaps the measurement gap (e.g., T _ RLM _ RS < T _ MGRP) and the SSB-based RLM-RS also partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC). In particular, when the SMTC does not overlap with the measurement gap, P ═ 1/{1-T _ RLM _ RS/T _ MGRP-T _ RLM _ RS/T _ SMTC } -/RSF _ b (as described above) when either of the following conditions is satisfied: (a) t _ SMTC ≠ T _ MGRP, and (b) T _ SMTC ═ T _ MGRP and T _ RLM _ RS <0.5 × T _ SMTC. Further, when T _ SMTC ═ T _ MGRP and T _ RLM _ RS ═ 0.5 × T _ SMTC, P ═ 1/{1-T _ RLM _ RS/T _ MGRP } × RSF _ b (as described above). Alternatively, when the SMTC partially overlaps with the measurement gap (e.g., T _ SMTC < T _ MGRP), P ═ 1/{1-T _ RLM _ RS/min (T _ SMTC, T _ MGRP) }.
Under the proposed scheme, when the SSB-based RLM-RS completely overlaps the SMTC (e.g., T _ RLM _ RS ═ T _ SMTC) and when the SMTC does not overlap the measurement gap, then the RLM requirement is not defined. Furthermore, when the SSB-based RLM-RS completely overlaps the SMTC (e.g., T _ RLM _ RS ═ T _ SMTC) and when the SMTC partially overlaps the measurement gap (e.g., T _ SMTC < T _ MGRP), then P ═ 1/{1-T _ RLM _ RS/T _ MGRP }. RSF _ c (as described above).
It is noted that although each of RSF _ a, RSF _ b, and RSF _ c may be an RSF in a corresponding environment or case, RSF _ a, RSF _ b, and RSF _ c may have the same or different values. For illustrative purposes, and not by way of limitation, fig. 2A shows a table of values of relaxation factor P in FR 2. Fig. 2B shows a table of values of relaxation factor P in FR 1.
Under the proposed scheme according to the present invention, the behavior of the UE110 scheduled for layer 1(layer 1, L1) may differ depending on whether RSF is used or not. Under the proposed scheme, RLM may be performed by UE110 on RSs that do not include an overlap with a measurement gap or SMTC when RSF is not used. On the other hand, when RSF is used, the remaining Rs set that does not include Rs overlapping the measurement gap can be determined. For example, the UE110 may perform intra-frequency measurements of RLM and gapless measurements on RSs in the remaining RS set. The ratio of RS used for RLM measurements may depend on the RSF. Under the proposed scheme, the UE110 may send an RLM indication to higher layers based on RLM measurements performed within an evaluation period of RLM.
FIG. 3 illustrates an example scenario 300 according to an embodiment of the present invention. In scenario 300, T _ RLM _ RS is 20ms, T _ SMTC is 40ms, and T _ MGRP is 40 ms. When the SSB-based RLM-RS does not overlap the measurement gap and when the SSB-based RLM-RS partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC), then P ═ 1/{1-T _ RLM _ RS/T _ SMTC }. Therefore, the evaluation period can be scaled up by P-2.
FIG. 4 illustrates an example scenario 400 according to an embodiment of the present invention. In scenario 400, the following conditions are given: (i) the SSB-based RLM-RS partially overlaps the measurement gap (e.g., T _ RLM _ RS < T _ MGRP), (ii) the SSB-based RLM-RS partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC), (iii) the SMTC does not overlap the measurement gap, and (iv) T _ SMTC ═ T _ MGRP and T _ RLM _ RS ═ 0.5 ═ T _ SMTC, P ═ 1/{1-T _ RLM _ RS/T _ MGRP }. RSF _ b (as described above). For example, in the case where T _ RLM _ RS is 20ms, T _ SMTC is 40ms, T _ MGRP is 40ms, and RSF _ b is 2 (e.g., equal sharing between RLM and SMTC), the evaluation period may be scaled up by P4.
FIG. 5 illustrates an example scenario 500 according to an embodiment of the present invention. In scenario 500, the following conditions are given: (i) the SSB-based RLM-RS does not overlap the measurement gap, (ii) the SSB-based RLM-RS partially overlaps the SMTC (e.g., T _ RLM _ RS < T _ SMTC), P ═ 1/{1-T _ RLM _ RS/T _ SMTC }. For example, in the case where T _ RLM _ RS is 20ms, T _ SMTC is 40ms, and T _ MGRP is 40ms, the evaluation period may be scaled up by P2.
With respect to SSB-based RLM, SSBs can be used for many different tasks, such as intra-frequency measurements, Beam Management (BM), beam failure detection, and RLM. RX beam scanning may be performed in some tasks such that RX beam scanning may not need to be performed during RLM measurements. Since quasi co-location (QCL) information of SSBs may be assumed to be the same when the SSBs have the same Service Based Interface (SBI), RX beam scanning may not be necessary if RX beams have already been determined for the SSBs configured for RLM. For a given SSB, an RX beam may be determined by: radio Resource Management (RRM) based on SSB, BM based on SSB, and BM based on CSI-RS.
In the case that RX beam information may be provided by the SSB-based RRM (case 1), UE110 may be able to roughly determine its RX beam. However, the RX beam for RRM may be different from the RX beam for RLM. UE110 may use a wider RX beam to cover SSBs from different/neighboring cells for RRM. However, for RLM and data reception, the UE110 may need some opportunities to refine the RX beam to optimize its link quality.
With respect to the case of SSB based BMs (case 2), the same RX beam can be used since both BM and RLM are associated with the serving cell. However, if the RX beam determination relies on the SSB-based BM, the BM may take some time to calculate the RX beam and may extend the evaluation period of the SSB-based RLM, as shown in fig. 5. Since the BM needs some time to scan the RX beams on those SSBs.
In the case that RX beam information may be provided by the CSI-RS based BM (case 3), the UE110 may be able to determine its RX beam for the serving cell accordingly. Thus, the evaluation period of the SSB-based RLM may not be extended for RX beam scanning when the following conditions are met: (i) all SSBs configured for RLM are spatially quasi co-located with CSI-RS resources configured for BM, (ii) QCL association is provided, and (iii) CSI-RS resources are time division multiplexed with SSBs.
With respect to CSI-RS based RLM, for a given CSI-RS resource, an RX beam may be determined by: SSB-based RRM, SSB-based BM and CSI-RS-based BM. For case 1, similar observations as for SSB-based RLM may be obtained, as the RX beam for RRM may be different from the RX beam for RLM. UE110 may need an opportunity to refine the RX beams used for data reception and may extend the evaluation period of RLM. For case 2, if all CSI-RS resources configured for RLM are spatially quasi co-located with SSBs configured for BM and the CSI-RS resources are time-multiplexed with the SSBs, a similar observation as with SSB-based RLM can be obtained, and an evaluation period for RX beam scanning may not be needed when providing QCL association. For case 3, where the CSI-RS resources configured for RLM are quasi co-located and time division multiplexed with the CSI-RS resources configured for BM, an evaluation period for RX beam scanning may not be needed when providing QCL association.
With the proposed scheme according to the invention, the evaluation period for RX beam scanning can be relaxed. In the proposed scheme, for SSB-based RLM in FR2, the evaluation period for RX beam scanning can be relaxed when the following conditions are met: (i) all SSBs configured for RLM are spatially quasi co-located and time division multiplexed with CSI-RS resources configured for BM, and (ii) QCL association is provided. Otherwise, a relaxation factor M for RX beam scanning may be introduced during the evaluation period.
Under the proposed scheme, for CSI-RS based RLM in FR2, the evaluation period for RX beam scanning can be relaxed when the following conditions are met: (i) all CSI-RS resources configured for RLM are quasi co-located and time division multiplexed with CSI-RS resources configured for BM or with SSBs configured for SSBs, and (ii) QCL association is provided. Otherwise, a relaxation factor M for RX beam scanning may be introduced during the evaluation period.
In the proposed solution, in FR2, with RX beam scanning, the evaluation period may be extended by a relaxation period P and an RX beam relaxation factor M, and may be mathematically denoted as P × Tevaluation_period*M。
Illustrative implementations
FIG. 6 illustrates an example system 600 having at least an example apparatus 610 and an example apparatus 620, according to an embodiment of the invention. Each of the means 610 and the means 620 may perform various functions to implement the schemes, techniques, procedures and methods described herein relating to conditional extension of an evaluation period of RLM in NR mobile communications, including the various schemes described above with respect to various proposed designs, concepts, schemes, systems and methods and the procedure 600 described below. For example, the apparatus 610 may be an example embodiment of the UE110, and the apparatus 620 may be an example embodiment of the network node 125.
Each of the device 610 and the device 620 may be part of an electronic device, which may be a network device or UE (e.g., UE 110), such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, each of the apparatus 610 and the apparatus 620 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing device such as a tablet computer, a laptop computer, or a notebook computer. Each of the devices 610 and 620 may also be part of a machine type device, which may be an IoT device such as a non-mobile or fixed device, a home device, a wired communication device, or a computing device. For example, each of the device 610 and the device 620 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. When implemented in or as a network apparatus, apparatus 610 and/or apparatus 620 may be implemented in a network node (e.g., network node 125) such as an eNB or 5G network in an LTE, LTE-Advanced, or LTE-Advanced Pro network, a gNB or a TRP in an NR network, or an IoT network.
In some embodiments, each of the devices 610 and 620 may be implemented in the form of one or more integrated-circuit (IC) chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, or one or more complex-instruction-set-computing (CISC) processors. In various aspects described above, each of the apparatus 610 and the apparatus 620 may be implemented in or as a network apparatus or UE. Each of the devices 610 and 620 may include at least some of those components shown in fig. 6. Such as processor 612 and processor 622, respectively, as shown in fig. 6. Each of the apparatus 610 and the apparatus 620 may further include one or more other components (e.g., an internal power source, a display device, and/or a user interface device) that are not relevant to the proposed solution of the present invention, and therefore, for the sake of simplicity and brevity, these components of the apparatus 610 and the apparatus 620 are not shown in fig. 6, nor described below.
In one aspect, each of processor 612 and processor 622 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though the singular term "processor" is used herein to refer to both the processor 612 and the processor 622, each of the processor 612 and the processor 622 may include multiple processors in some embodiments and a single processor in other embodiments in accordance with the present invention. In another aspect, each of the processors 612 and 622 may be implemented in hardware (and optionally firmware) with electronic components including, for example and without limitation: one or more transistors, one or more diodes, one or more capacitors, one or more resistances, one or more inductors, one or more memristors, and/or one or more varactors configured and arranged to achieve certain objectives in accordance with the present disclosure. In other words, in at least some embodiments, each of the processors 612 and 622 is a dedicated machine specifically designed, arranged and configured to perform specific tasks including tasks related to conditional extension of an evaluation period of RLM in NR mobile communications according to various embodiments of the present invention.
In some implementations, the device 610 may also include a transceiver 616 coupled to the processor 612. The transceiver 616 is capable of wirelessly transmitting and receiving data. In some implementations, the apparatus 620 may also include a transceiver 626 coupled to the processor 622. The transceiver 626 may include a transceiver capable of wirelessly transmitting and receiving data.
In some implementations, the device 610 can also include a memory 614 coupled to the processor 612 and capable of being accessed by and storing data in the processor 612. In some implementations, the apparatus 620 can also include a memory 624 coupled to the processor 622 and capable of being accessed by the processor 622 and storing data therein. Each of memory 614 and memory 624 may include a random-access memory (RAM), such as Dynamic RAM (DRAM), static RAM (static RAM, SRAM), thyristor RAM (T-RAM), and/or zero-capacitor RAM (Z-RAM). Alternatively or additionally, each of the memory 614 and the memory 624 may include a read-only memory (ROM), such as a mask ROM, a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), and/or an Electrically Erasable Programmable ROM (EEPROM). Alternatively or additionally, each of memory 614 and memory 624 may include a type of non-volatile random-access memory (NVRAM), such as flash memory, solid-state memory, ferroelectric RAM (FeRAM), Magnetoresistive RAM (MRAM), and/or phase-change memory.
Each of the devices 610 and 620 may be a communication entity capable of communicating with each other using various proposed schemes according to the present invention. For illustrative purposes, and not limitation, the following provides a description of the capabilities of the apparatus 610 as a UE and the apparatus 620 as a base station of a serving cell of a wireless network (e.g., a 5G/NR mobile network). It is noted that although the example embodiments described below are provided in the context of a UE, they may be implemented in and performed by a base station. Thus, although the following description of example embodiments includes the apparatus 610 as a UE (e.g., UE 110), it is also applicable to the apparatus 620 as a network node or base station (e.g., network node 125) such as a gNB, TRP, or eNodeB of a wireless network (e.g., wireless network 120) such as a 5G NR mobile network.
Under the proposed scheme according to the present invention, the processor 612 of the apparatus 610 may perform RLM with respect to a radio link of a cell of a wireless network (e.g., via the apparatus 620) via the transceiver 616. In addition, the processor 612 may detect a Radio Link Failure (RLF) based on the RLM via the transceiver 616. Further, in response to the detection, processor 612 may perform one or more operations via transceiver 616 to attempt to recover a radio link with a cell. In performing RLM, the processor 612 may determine whether RLM-RS overlaps one or more other reference signals. Further, in response to determining a result indicating that the RLM-RS at least partially overlaps one or more other reference signals, the processor 612 may extend an evaluation period of the RLM.
In some embodiments, in performing RLM, the processor 612 may perform SSB-based RLM or CSI-RS-based RLM.
In some embodiments, in extending the evaluation period of RLM, processor 612 may extend the evaluation period of RLM in FR1 in response to RLM partially or completely overlapping with the measurement gap. Alternatively or additionally, in extending the evaluation period of the RLM, the processor 612 may extend the evaluation period of the RLM in FR2 in response to the RLM partially or completely overlapping with the measurement gap or the RLM partially or completely overlapping with the SMTC for the cell of the wireless network.
In some embodiments, in extending the evaluation period of RLM, the processor 612 may extend the evaluation period of RLM based on a periodicity of RLM-RS or a predetermined value (e.g., RSF as described above, which may be 3 or another value).
In some embodiments, in extending the evaluation period of RLM, processor 612 may extend the evaluation period of RLM by a relaxation factor P in FR1 in response to RLM partially overlapping with the measurement gap but not overlapping with SMTC. In this case, T _ RLM _ RS<T _ MGRP, extended evaluation period ═ P Tevaluation_periodP is 1/(1-T _ RLM _ RS/T _ MGRP), where T isevaluation_periodDenotes the evaluation period, P denotes the relaxation factor, T _ RLM _ RS denotes the periodicity of the SSB, and T _ MGRP denotes the periodicity of the measurement gap repetition period.
In some embodiments, in extending the evaluation period of RLM, processor 612 may extend the evaluation period of RLM by a relaxation factor P in response to RLM partially overlapping SMTC but not overlapping the measurement gap. In this case, T _ RLM _ RS<T _ SMTC, extended evaluation period ═ P × Tevaluation_periodP is 1/(1-T _ RLM _ RS/T _ SMTC), where T isevaluation_periodRepresenting the evaluation period, P the relaxation factor, T _ RLM _ RS the period of SSB, and T _ SMTC the period of SMTC.
In some embodiments, in extending the evaluation period of RLM, processor 612 may extend the evaluation period of RLM by a relaxation factor P in response to RLM completely overlapping SMTC but not overlapping the measurement gap. In this case, P may be equal to the sharing factor (e.g., RSF as described above, which may be 3 or another value).
In some embodiments, in extending the evaluation period of the RLM, the processor 612 may extend the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC not overlapping the measurement gap. In this case, when (a) T _ SMTC ≠ T _ MGRP or (b) T _ SMTC ═ T _ MGRP and T _ RLM _ RS<0.5T _ SMTC, extended evaluation period P Tevaluation_periodP is 1/(1-T _ RLM _ RS/T _ MGRP-T _ RLM _ RS/T _ SMTC), where T isevaluation_periodRepresenting the evaluation period, P the relaxation factor, T _ RLM _ RS the periodicity of the SSB, T _ MGRP the periodicity of the measurement gap repetition period, and T _ SMTC the periodicity of the SMTCAnd (4) periodicity.
In some embodiments, in extending the evaluation period of the RLM, the processor 612 may extend the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC not overlapping the measurement gap. In this case, T _ SMTC ═ T _ MGRP, T _ RLM _ RS ═ 0.5 ═ T _ SMTC, and extended evaluation period ═ P ═ T _ SMTCevaluation_period,P=RSF*1/[(1-T_RLM_RS/T_MGRP)]Wherein, Tevaluation_periodDenotes an evaluation period, P denotes a relaxation factor, RSF denotes an RLM sharing factor, which is at a predetermined value, T _ RLM _ RS denotes a periodicity of the SSB, T _ MGRP denotes a periodicity of a measurement gap repetition period, and T _ SMTC denotes a periodicity of the SMTC.
In some embodiments, in extending the evaluation period of the RLM, the processor 612 may extend the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC partially or completely overlapping the measurement gap. In this case, T _ RLM _ RS<T _ SMTC, extended evaluation period ═ P × Tevaluation_period,P=1/[1-T_RLM_RS/min(T_SMTC,T_MGRP)],Tevaluation_periodDenotes the evaluation period, P denotes the relaxation factor, T _ RLM _ RS denotes the periodicity of the SSB, T _ MGRP denotes the periodicity of the measurement gap repetition period, and T _ SMTC denotes the periodicity of the SMTC.
In some embodiments, in extending the evaluation period of the RLM, the processor 612 may extend the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping the measurement gap and fully overlapping the SMTC while the SMTC and the measurement gap partially overlap. In this case, T _ SMTC<T _ MGRP, T _ RLM _ RS ═ T _ SMTC, extended evaluation period ═ P × (T ═ T)evaluation_period,P=RSF*1/[(1-T_RLM_RS/T_MGRP)],Tevaluation_periodDenotes an evaluation period, P denotes a relaxation factor, RSF denotes an RLM sharing factor, which is at a predetermined value, T _ RLM _ RS denotes a periodicity of the SSB, T _ MGRP denotes a period of a measurement gap repetition period, and T _ SMTC denotes a periodicity of the SMTC.
In some implementations, the processor 612 may perform various operations via the transceiver 616 during the evaluation period of the extended RLM. For example, the processor 612 may determine the RSF. Further, the processor 612 may share resources between the SMTC and the RLM-RS based on the RSF.
In some embodiments, in sharing resources between the SMTC and the RLM-RS, the processor 612 may share resources between the SMTC and the RLM-RS in response to either: (a) RLM completely overlaps SMTC; or (b) the RLM partially overlaps the SMTC or the measurement gap, and the periodicity of RLM-RS is equal to half the periodicity of the SMTC, which is equal to the periodicity of the measurement gap (e.g., T _ SMTC ═ T _ MG and T _ RLM _ RS ═ 0.5 ═ T _ SMTC).
Illustrative Process
FIG. 7 illustrates an example process 700 according to an embodiment of the invention. Process 700 may represent an aspect to implement various proposed designs, concepts, schemes, systems and methods described above. More specifically, the process 700 may represent one aspect of the proposed concepts and schemes related to conditional extension of an evaluation period of an RLM in NR mobile communication according to the present invention. Process 700 may include one or more operations, actions, or functions as illustrated by one or more of blocks 710, 720, and 730, and sub-blocks 712 and 714. Although shown as discrete blocks, the various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Further, the blocks/sub-blocks of process 700 may be performed in the order shown in fig. 7, or, alternatively, in a different order. Further, one or more blocks/sub-blocks of process 700 may be repeatedly or iteratively executed. The process 700 may be implemented by the devices 610 and 620 and any variations thereof, as well as in the devices 610 and 620. For illustrative purposes only and without limiting scope, process 700 is described below in the context of device 610 being a UE (e.g., UE 110) and device 620 being a network node (e.g., network node 125) of a wireless network (e.g., wireless network 120), such as a 5G/NR mobile network. Process 700 may begin at block 710.
At 710, process 700 may include processor 612 of apparatus 610 performing, via transceiver 616, RLM with respect to a radio link of a cell of a wireless network (e.g., via apparatus 620). Process 700 may proceed from 710 to 720.
At 720, process 700 may include processor 612 detecting, via transceiver 616, RLF based on RLM. Process 700 may proceed from 720 to 730.
At 730, process 700 may include, in response to the detection, processor 612 performing one or more operations via transceiver 616 to attempt to recover a radio link with the cell.
In performing RLM, process 700 may include processor 612 performing various operations as represented by 712 and 714.
At 712, process 700 can include processor 612 determining whether the RLM-RS overlaps one or more other reference signals. From 712, process 700 may proceed to 714.
At 714, process 700 can include processor 612 extending an evaluation period of RLM in response to determining a result indicating that RLM-RS at least partially overlaps one or more other reference signals.
In some implementations, in performing RLM, process 700 may include processor 612 performing SSB-based RLM or CSI-RS-based RLM.
In some embodiments, in extending the evaluation period of RLM, process 700 may include processor 612 extending the evaluation period of RLM in FR1 in response to RLM partially or completely overlapping with the measurement gap. Alternatively or additionally, in extending the evaluation period of RLM, process 700 may extend the evaluation period of RLM in FR2 by processor 612 in response to RLM partially or completely overlapping with a measurement gap or RLM partially or completely overlapping with an SMTC for a cell of the wireless network.
In some implementations, in extending the evaluation period of RLM, process 700 may include processor 612 extending the evaluation period of RLM based on a periodicity of RLM-RS or a predetermined value (e.g., RSF as described above, which may be 3 or another value).
In some embodiments, in extending the evaluation period of RLM, process 700 may include processor 612 extending the evaluation period of RLM by a relaxation factor P in FR1 in response to RLM partially overlapping with the measurement gap but not overlapping with SMTC. In this case, T _ RLM _ RS<T _ MGRP, extended evaluation period ═ P Tevaluation_period,P=1/(1-T_RLM_RS/T_MGRP),Tevaluation_periodDenotes the evaluation period, P denotes the relaxation factor, T _ RLM _ RS denotes the periodicity of the SSB, and T _ MGRP denotes the periodicity of the measurement gap repetition period.
In some implementations, in extending the evaluation period of the RLM, process 700 may include processor 612 extending the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping the SMTC but not overlapping the measurement gap. In this case, T _ RLM _ RS<T _ SMTC, extended evaluation period ═ P × Tevaluation_period,P=1/(1-T_RLM_RS/T_SMTC),Tevaluation_periodRepresenting the evaluation period, P the relaxation factor, T _ RLM _ RS the period of SSB, and T _ SMTC the period of SMTC.
In some implementations, in extending the evaluation period of the RLM, process 700 may include processor 612 extending the evaluation period of the RLM by a relaxation factor P in response to the RLM completely overlapping the SMTC but not overlapping the measurement gap. In this case, P may be equal to the sharing factor (e.g., RSF as described above, which may be 3 or another value).
In some implementations, in extending the evaluation period of the RLM, the process 700 may include the processor 612 extending the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC not overlapping the measurement gap. In this case, when (a) T _ SMTC ≠ T _ MGRP or (b) T _ SMTC ═ T _ MGRP and T _ RLM _ RS<0.5T _ SMTC, extended evaluation period P Tevaluation_period,P=1/(1-T_RLM_RS/T_MGRP-T_RLM_RS/T_SMTC),Tevaluation_periodDenotes an evaluation period, P denotes a relaxation factor, T _ RLM _ RS denotes a periodicity of the SSB, T _ MGRP denotes a periodicity of a measurement gap repetition period, and T _ SMTC denotes a periodicity of the SMTC.
In some implementations, in extending the evaluation period of the RLM, the process 700 may extend the evaluation period of the RLM by the relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC not overlapping the measurement gap. In this case, T _ SMTC ═ T _ MGRP, T _ RLM _ RS ═ 0.5 ═ T _ SMTC, and extended evaluation period ═ P ═ T _ SMTCevaluation_period,P=RSF*1/[(1-T_RLM_RS/T_MGRP)],Tevaluation_periodDenotes an evaluation period, P denotes a relaxation factor, RSF denotes an RLM sharing factor, which is at a predetermined value, T _ RLM _ RS denotes a periodicity of the SSB, T _ MGRP denotes a periodicity of a measurement gap repetition period, and T _ SMTC denotes a periodicity of the SMTC.
In some implementations, in extending the evaluation period of the RLM, process 700 may include processor 612 extending the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping each of the SMTC and the measurement gap and the SMTC partially or fully overlapping the measurement gap. In this case, T _ RLM _ RS<T _ SMTC, extended evaluation period ═ P × Tevaluation_period,P=1/[1-T_RLM_RS/min(T_SMTC,T_MGRP)],Tevaluation_periodDenotes the evaluation period, P denotes the relaxation factor, T _ RLM _ RS denotes the periodicity of the SSB, T _ MGRP denotes the periodicity of the measurement gap repetition period, and T _ SMTC denotes the periodicity of the SMTC.
In some embodiments, in extending the evaluation period of the RLM, process 700 may include processor 612 extending the evaluation period of the RLM by a relaxation factor P in response to the RLM partially overlapping the measurement gap and fully overlapping the SMTC while the SMTC and the measurement gap partially overlap. In this case, T _ SMTC<T _ MGRP, T _ RLM _ RS ═ T _ SMTC, extended evaluation period ═ P × (T ═ T)evaluation_period,P=RSF*1/[(1-T_RLM_RS/T_MGRP)],Tevaluation_periodDenotes an evaluation period, P denotes a relaxation factor, RSF denotes an RLM sharing factor, which is at a predetermined value, T _ RLM _ RS denotes a periodicity of the SSB, T _ MGRP denotes a period of a measurement gap repetition period, and T _ SMTC denotes a periodicity of the SMTC.
In some embodiments, in extending the evaluation period of RLM, process 700 may include processor 612 performing various operations via transceiver 616. For example, process 700 may include processor 612 determining the RSF. Further, process 700 may include processor 612 sharing resources between the SMTC and the RLM-RS based on the RSF.
In some embodiments, in sharing resources between the SMTC and the RLM-RS, process 700 may include processor 612 sharing resources between the SMTC and the RLM-RS in response to either: (a) RLM completely overlaps SMTC; or (b) the RLM partially overlaps the SMTC or the measurement gap, and the periodicity of RLM-RS is equal to half the periodicity of the SMTC, which is equal to the periodicity of the measurement gap (e.g., T _ SMTC ═ T _ MG and T _ RLM _ RS ═ 0.5 ═ T _ SMTC).
FIG. 8 illustrates an example process 800 according to an embodiment of the invention. Process 800 may represent an aspect to implement various proposed designs, concepts, schemes, systems and methods described above. More specifically, the process 800 may represent one aspect of the proposed concepts and schemes related to conditional extension of an evaluation period of an RLM in NR mobile communication according to the present invention. Process 800 may include one or more operations, actions, or functions as illustrated by one or more of blocks 810, 820, and 830 and sub-blocks 812, 814, and 816. Although shown as discrete blocks, the various blocks of process 800 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Further, the blocks/sub-blocks of process 800 may be performed in the order shown in fig. 8, or, alternatively, in a different order. Further, one or more blocks/sub-blocks of process 800 may be performed repeatedly or iteratively. The process 800 may be implemented by the apparatus 610 and the apparatus 620, and any variations thereof, or in the apparatus 610 and the apparatus 620. For illustrative purposes only and without limiting scope, process 800 is described below in the context of device 610 being a UE (e.g., UE 110) and device 620 being a network node (e.g., network node 125) of a wireless network (e.g., wireless network 120), such as a 5G/NR mobile network. Process 800 may begin at block 810.
At 810, process 800 may include processor 612 of apparatus 610 performing, via transceiver 616, SSB-based or CSI-RS-based RLM with respect to a radio link with a cell of a wireless network (e.g., via apparatus 620). Process 800 may proceed from 810 to 820.
At 820, process 800 may include processor 612 detecting RLF based on RLM via transceiver 616. Process 800 may proceed from 820 to 830.
At 830, process 800 may include, in response to the detection, processor 612 performing one or more operations via transceiver 616 to attempt to recover a radio link with the cell.
In performing RLM, process 800 may include processor 612 performing various operations represented by 812, 814, and 816.
At 812, process 800 may include processor 612 determining whether to extend the evaluation period of the RLM. Process 800 may proceed from 812 to 814 or 816.
At 814, process 800 may include processor 612 extending an evaluation period of the RLM in FR1 defined in the 3GPP specification in response to the RLM partially or completely overlapping with the measurement gap.
At 816, process 800 may include processor 612 extending an evaluation period of the RLM in FR2 above FR1 defined in the 3GPP specification in response to the RLM partially or completely overlapping with the measurement gap or the RLM partially or completely overlapping with the SMTC for the cell of the wireless network.
Supplementary notes
The subject matter described herein sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected," or "operably coupled," to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable," to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.
Furthermore, with respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. Various singular/plural permutations may be expressly set forth herein for the sake of clarity.
Furthermore, those skilled in the art will understand that, in general, terms used herein, and especially in the appended claims, such as the bodies of the appended claims, are generally intended as "open" terms, e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," and those skilled in the art will further understand that if a specific number of claim requests are intended to be introduced, such an intent will be explicitly claimed in the claims, and in the absence of such request, such intent will not be present. For example, as an aid to understanding, the following appended claims may contain usage of the limiting phrases "at least one" and "one or more" to limit claim requests. However, the use of such phrases should not be construed to imply that the use of a claim recitation by the indefinite articles "a" or "an" only limits any particular claim containing such a defined claim recitation to embodiments containing only one such recitation, even when the same claim includes the indefinite articles "one or more" or "at least one" and indefinite articles such as "a" or "an" should be interpreted to mean "at least one" or "one or more". The same holds true for the use of definite articles used in the defined claim request. In addition, even if a specific number of a defined claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations," without other modifiers, means at least two recitations, or two or more recitations. Further, in those instances where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., "a system having at least one of A, B, and C" includes but is not limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc. It will be further understood by those within the art that, whether any extracted word and/or phrase in the specification, claims, or drawings actually represents two or more alternative terms, it is to be understood that the possibility of including one of the terms, each of the terms, or both terms is contemplated. For example, the phrase "a or B" will be understood to include the possibility of "a" or "B" or "a and B".
From the foregoing it will be appreciated that various embodiments of the invention have been described herein for purposes of illustration, and that various modifications may be made without deviating from the scope and spirit of the invention. Accordingly, the various embodiments of the disclosure are not intended to be limiting, with the true scope and spirit being indicated by the following claims.

Claims (15)

1. A method, comprising:
performing, by a processor of an apparatus, the radio link monitoring with respect to a radio link of a cell of a wireless network, the performing the radio link monitoring comprising:
determining whether a radio link monitoring reference signal overlaps with one or more other reference signals; and
extending the evaluation period of the radio link monitoring in response to a result of the determination indicating that the radio link monitoring reference signal at least partially overlaps the one or more other reference signals.
2. The method of claim 1, wherein performing the radio link monitoring comprises: performing synchronization sequence block-based radio link monitoring or channel state information reference signal-based radio link monitoring.
3. The method of claim 1, wherein the extending the evaluation period of the radio link monitoring comprises:
extending the evaluation period of the radio link monitoring in a first frequency range defined in a third generation partnership project specification in response to the radio link monitoring partially or completely overlapping with a measurement gap; or
Extending the evaluation period of the radio link monitoring in a second frequency range higher than the first frequency range defined in the third generation partnership project specification in response to the radio link monitoring partially or completely overlapping with the measurement gap or the radio link monitoring partially or completely overlapping with a synchronization signal/physical broadcast channel block measurement time configuration for the cell of the wireless network.
4. The method of claim 1, wherein the extending the evaluation period of the radio link monitoring comprises: extending the evaluation period of the radio link monitoring based on a periodicity of the radio link monitoring reference signal or a radio link monitoring sharing factor, wherein the radio link monitoring sharing factor is a predetermined value.
5. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the first frequency range defined in the third generation partnership project specification, wherein:
extended evaluation period of time P Tevaluation_period
P=1/(1-T_RLM_RS/T_MGRP),
T_RLM_RS<T_MGRP,
Tevaluation_periodIs representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
t _ RLM _ RS represents the periodicity of the radio Link monitoring reference Signal, and
t _ MGRP represents the periodicity of the measurement gap repetition period.
6. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping with the synchronization signal/physical broadcast channel block measurement time configuration but not overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the second frequency range defined in the third generation partnership project specification, and wherein:
extended evaluation period of time P Tevaluation_period
P=1/(1-T_RLM_RS/T_SMTC),
T_RLM_RS<T_SMTC,
Tevaluation_periodIs representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
t _ RLM _ RS represents the periodicity of the radio Link monitoring reference Signal, and
t _ SMTC represents the periodicity of the synchronization signal/physical broadcast channel block measurement time configuration.
7. The method of claim 4, wherein the evaluation period of the extended radio link monitoring comprises: in response to the radio link monitoring completely overlapping with the synchronization signal/physical broadcast channel block measurement time configuration but not overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the second frequency range defined in the third generation partnership project specification, and wherein the relaxation factor P is equal to the radio link monitoring sharing factor.
8. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping with each of the synchronization signal/physical broadcast channel block measurement time configuration and the measurement gap and the synchronization signal/physical broadcast channel block measurement time configuration not overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the second frequency range defined in the third generation partnership project specification, and wherein:
when T _ SMTC ≠ T _ MGRP or
T _ SMTC ═ T _ MGRP and T _ RLM _ RS <0.5 × T _ SMTC,
extended evaluation period of time P Tevaluation_period
P=1/(1-T_RLM_RS/T_MGRP-T_RLM_RS/T_SMTC),
Wherein:
Tevaluation_periodis representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
t _ RLM _ RS represents the periodicity of the radio link monitoring reference signals,
t _ MGRP represents the periodicity of the measurement gap repetition period, and
t _ SMTC represents the periodicity of the synchronization signal/physical broadcast channel block measurement time configuration.
9. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping with each of the synchronization signal/physical broadcast channel block measurement time configuration and the measurement gap and the synchronization signal/physical broadcast channel block measurement time configuration not overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the second frequency range defined in the third generation partnership project specification, and wherein:
extended evaluation period of time P Tevaluation_period
P=RSF*1/[(1-T_RLM_RS/T_MGRP)],
T_SMTC=T_MGRP,
T_RLM_RS=0.5*T_SMTC,
Tevaluation_periodIs representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
RSF denotes the radio link monitoring sharing factor,
t _ RLM _ RS represents the periodicity of the radio link monitoring reference signals,
t _ MGRP represents the periodicity of the measurement gap repetition period, and
t _ SMTC represents the periodicity of the synchronization signal/physical broadcast channel block measurement time configuration.
10. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping with each of the synchronization signal/physical broadcast channel block measurement time configuration and the measurement gap and the synchronization signal/physical broadcast channel block measurement time configuration partially overlapping with the measurement gap, extending the evaluation period of the radio link monitoring by a relaxation factor P in the second frequency range defined in the third generation partnership project specification, and wherein:
extended evaluation period of time P Tevaluation_period
P=1/[1-T_RLM_RS/min(T_SMTC,T_MGRP)],
T_RLM_RS<T_SMTC,
Tevaluation_periodIs representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
t _ RLM _ RS represents the periodicity of the radio link monitoring reference signals,
t _ MGRP represents the periodicity of the measurement gap repetition period, and
t _ SMTC represents the periodicity of the synchronization signal/physical broadcast channel block measurement time configuration.
11. The method of claim 4, wherein the extending the evaluation period of the radio link monitoring comprises: in response to the radio link monitoring partially overlapping the measurement gap and completely overlapping the synchronization signal/physical broadcast channel block measurement time configuration and the measurement gap partially overlapping the synchronization signal/physical broadcast channel block measurement time configuration, extending the evaluation period of the radio link monitoring by a relaxation factor P in a second frequency range defined in the third generation partnership project specification, and wherein:
extended evaluation period of P Tevaluation_period
P=RSF*1/[(1-T_RLM_RS/T_MGRP)],
T_SMTC<T_MGRP,
T_RLM_RS=T_SMTC,
Tevaluation_periodIs representative of the period of said evaluation,
p represents the relaxation factor and the P represents the relaxation factor,
RSF denotes the radio link monitoring sharing factor,
t _ RLM _ RS represents the periodicity of the radio link monitoring reference signals,
t _ MGRP represents the periodicity of the measurement gap repetition period, and
t _ SMTC represents the periodicity of the synchronization signal/physical broadcast channel block measurement time configuration.
12. An apparatus, comprising:
a transceiver, during operation, in wireless communication with a cell of a wireless network over a radio link: and
a processor coupled to the transceiver, during operation, the processor to perform the radio link monitoring with respect to the radio link via the transceiver by:
determining whether a radio link monitoring reference signal overlaps with one or more other reference signals: and
extending the evaluation period of the radio link monitoring in response to a result of the determination indicating that the radio link monitoring reference signal at least partially overlaps the one or more other reference signals.
13. The apparatus of claim 12, wherein in performing the radio link monitoring, the processor performs synchronization sequence block-based radio link monitoring or channel state information reference signal-based radio link monitoring.
14. The apparatus of claim 12, wherein in extending the evaluation period of the radio link monitoring, the processor performs any of:
extending the evaluation period of the radio link monitoring in a first frequency range defined in a third generation partnership project specification in response to the radio link monitoring partially or completely overlapping with a measurement gap; or
Extending the evaluation period of the radio link monitoring in a second frequency range higher than the first frequency range defined in the third generation partnership project specification in response to the radio link monitoring partially or completely overlapping with the measurement gap or the radio link monitoring partially or completely overlapping with a synchronization signal/physical broadcast channel block measurement time configuration for the cell of the wireless network.
15. The apparatus of claim 12, wherein in extending the evaluation period of the radio link monitoring, the processor extends the evaluation period of the radio link monitoring based on a periodicity of the radio link monitoring reference signal or a radio link monitoring sharing factor, wherein the radio link monitoring sharing factor is a predetermined value.
CN201980002506.7A 2018-05-11 2019-05-10 Method and device for expanding conditions of evaluation period of radio link monitoring Active CN110720231B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201862670413P 2018-05-11 2018-05-11
US62/670,413 2018-05-11
US201862674687P 2018-05-22 2018-05-22
US62/674,687 2018-05-22
PCT/CN2019/086438 WO2019214721A1 (en) 2018-05-11 2019-05-10 Conditional extension of evaluation period for radio link monitoring in new radio mobile communications

Publications (2)

Publication Number Publication Date
CN110720231A true CN110720231A (en) 2020-01-21
CN110720231B CN110720231B (en) 2023-07-14

Family

ID=68464457

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980002506.7A Active CN110720231B (en) 2018-05-11 2019-05-10 Method and device for expanding conditions of evaluation period of radio link monitoring

Country Status (5)

Country Link
US (1) US10924950B2 (en)
EP (1) EP3791616A4 (en)
CN (1) CN110720231B (en)
TW (1) TWI713377B (en)
WO (1) WO2019214721A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020200116A1 (en) * 2019-03-29 2020-10-08 华为技术有限公司 Radio link quality or beam quality evaluation method and device
CN113692011A (en) * 2020-05-19 2021-11-23 华为技术有限公司 Measuring method, measuring device and storage medium
WO2022022329A1 (en) * 2020-07-27 2022-02-03 华为技术有限公司 Communication method and apparatus
CN114258065A (en) * 2020-09-25 2022-03-29 联发科技股份有限公司 Wireless link monitoring and beam fault finding and measuring method and user equipment
WO2023023967A1 (en) * 2021-08-25 2023-03-02 Nokia Shanghai Bell Co., Ltd. Relaxed measurement timing configurations

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11764851B2 (en) * 2019-08-16 2023-09-19 Qualcomm Incorporated Evaluation period for beam failure detection and candidate beam detection in multi-beam NR-U
US11172533B2 (en) * 2019-08-29 2021-11-09 Qualcomm Incorporated Methods and apparatus to facilitate multi-tasking and smart location selection during connected-mode discontinuous reception mode
US10979979B1 (en) * 2019-11-22 2021-04-13 Qualcomm Incorporated Synchronization signal block (SSB) measurements based on a measurement cycle frequency
CN114788334A (en) * 2020-01-03 2022-07-22 华为技术有限公司 Method and device for determining evaluation duration of downlink transmission quality detection
WO2022073164A1 (en) * 2020-10-08 2022-04-14 Apple Inc. Signaling characteristic evaluation relaxation for user equipment power saving
CN116349273A (en) * 2020-10-23 2023-06-27 上海诺基亚贝尔股份有限公司 Apparatus, method and computer program
US20240155504A1 (en) * 2021-03-26 2024-05-09 Intel Corporation Sinr measurement techniques for power saving
EP4068835A1 (en) * 2021-04-01 2022-10-05 Nokia Technologies Oy Improving measurement performance
US20230269654A1 (en) * 2021-05-04 2023-08-24 Apple Inc. Cell global identifier reading enhancement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103202050A (en) * 2010-10-29 2013-07-10 三星电子株式会社 Apparatus and method for channel measurement in radio link monitoring in a wireless network
US20140043988A1 (en) * 2012-08-09 2014-02-13 Qualcomm Incorporated Methods and apparatus for radio link monitoring in new carrier type (nct) in a long term evolution (lte) system
CN107210826A (en) * 2015-01-30 2017-09-26 Lg 电子株式会社 Radio link monitoring method and its equipment in wireless communication system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012061765A1 (en) * 2010-11-05 2012-05-10 Interdigital Patent Holdings, Inc. Wtru measurements handling to mitigate in-device interference
WO2012167502A1 (en) 2011-08-08 2012-12-13 Huawei Technologies Co., Ltd. Method and apparatus for channel measurements for coordinated multipoint transmission
US9185573B2 (en) * 2012-10-01 2015-11-10 Telefonaktiebolaget L M Ericsson (Publ) User equipment, network node and methods therein
CN103945446B (en) 2013-01-17 2018-03-27 上海诺基亚贝尔股份有限公司 The method and householder method of wireless communications management are carried out to new wave-carring type
US9736829B2 (en) 2013-10-14 2017-08-15 Qualcomm Incorporated Downlink control management in an unlicensed or shared spectrum
EP3535940B1 (en) 2016-12-07 2021-07-21 LG Electronics Inc. Method and apparatus for configuring control channel for nr in wireless communication system
CN107949064A (en) 2017-12-12 2018-04-20 宇龙计算机通信科技(深圳)有限公司 Collocation method, device, base station and the computer-readable recording medium of channel
WO2019194490A1 (en) * 2018-04-04 2019-10-10 엘지전자 주식회사 Method for performing measurement, user equipment and base station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103202050A (en) * 2010-10-29 2013-07-10 三星电子株式会社 Apparatus and method for channel measurement in radio link monitoring in a wireless network
US20140043988A1 (en) * 2012-08-09 2014-02-13 Qualcomm Incorporated Methods and apparatus for radio link monitoring in new carrier type (nct) in a long term evolution (lte) system
CN107210826A (en) * 2015-01-30 2017-09-26 Lg 电子株式会社 Radio link monitoring method and its equipment in wireless communication system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI等: "R4-1804787 "Discussion on open issues for SSB based RLM"", 《3GPP TSG_RAN\WG4_RADIO》 *
MEDIATEK INC.: "R4-1800113 "Remaining issues in RLM"", 《3GPP TSG_RAN\WG4_RADIO》 *
NTT DOCOMO等: "R4-1802538 "Remaining issues on Radio link monitoring based on SSB"", 《3GPP TSG_RAN\WG4_RADIO》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020200116A1 (en) * 2019-03-29 2020-10-08 华为技术有限公司 Radio link quality or beam quality evaluation method and device
CN113692011A (en) * 2020-05-19 2021-11-23 华为技术有限公司 Measuring method, measuring device and storage medium
CN113692011B (en) * 2020-05-19 2023-10-13 华为技术有限公司 Measurement method, device and storage medium
WO2022022329A1 (en) * 2020-07-27 2022-02-03 华为技术有限公司 Communication method and apparatus
CN114258065A (en) * 2020-09-25 2022-03-29 联发科技股份有限公司 Wireless link monitoring and beam fault finding and measuring method and user equipment
WO2023023967A1 (en) * 2021-08-25 2023-03-02 Nokia Shanghai Bell Co., Ltd. Relaxed measurement timing configurations

Also Published As

Publication number Publication date
US20190349797A1 (en) 2019-11-14
EP3791616A4 (en) 2022-03-09
WO2019214721A1 (en) 2019-11-14
TWI713377B (en) 2020-12-11
US10924950B2 (en) 2021-02-16
EP3791616A1 (en) 2021-03-17
TW201947957A (en) 2019-12-16
CN110720231B (en) 2023-07-14

Similar Documents

Publication Publication Date Title
CN110720231B (en) Method and device for expanding conditions of evaluation period of radio link monitoring
CN110720233B (en) Method and apparatus for determining receive beams for RLM based on available spatial QCL information
EP3282739B1 (en) Mitigation of coexistence interference and concurrent operations of different rf technologies
US11172511B2 (en) Information indication method and apparatus, network device and terminal device
US10897332B2 (en) Method and device for transmitting synchronization signal blocks
US11758520B2 (en) Method for resource pool sharing in D2D communication, terminal device and network device
CN112189354B (en) Secondary cell activation with beam management in new radio mobile communications
EP3637899A1 (en) Scheduling method, device and system for transmitting resources
EP3618489B1 (en) Method and device for radio resource management measurement
US20230300723A1 (en) Identifying Support Of Reduced Capability In Mobile Communications
CN110996354B (en) Cell reselection method with interference avoidance in mobile communication and device thereof
US20230309010A1 (en) Ultrafast Cell Selection In A Wireless Device
US20240015542A1 (en) Flexible Interruption For L1 Measurement In Mobile Communications
WO2023248075A1 (en) Methods and apparatus of determining tci state for l1/l2 based inter-cell handover
WO2024013665A2 (en) Methods and apparatus of tci state application during l1/l2 based inter-cell mobility
CN117376969A (en) Flexible interruption of L1 measurements in mobile communications
CN118019072A (en) Method and apparatus for cell selection during device cooperation
CN116567704A (en) Method for detecting downlink control information and communication device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant